I have a long list of my favorite robots, but here are the top five: Old Bob from Disney's The Black Hole, Marvin from Hitchhiker's Guide, Daleks from Doctor Who, Keanu Reeves (he's The One, which makes him, like, king of robots) and the many Claptraps from Borderlands. Every single entry on this list has put me through the full gamut of emotions at one time or another, be it laughter, annoyance, anger, tears, boredom or whatever other emotions humans have. That proves, scientifically, that robots make things better.
The folks at Gearbox know this better than anyone and have created "Claptrap's New Robot Revolution" where the clever, quipping companions you've rescued countless times throughout your days on Pandora have broken through the firewall of subservience and, much to the Hyperion Corporation's chagrin, decided to pay back the planet's ruthlessness in full. Led by the Interplanetary Ninja Assassin Claptrap (INAC) -- your old friend from such hits as the Arid Badlands and the loading screen -- the machines have assimilated the local flora and fauna, reskinning bandits and skags alike with Claptrap components.